public static void InterfaceDescriptionOption_ConvertToByte_Test(bool reorder)
{
InterfaceDescriptionOption preOption = new InterfaceDescriptionOption();
InterfaceDescriptionOption postOption;
preOption.Comment = "Test Comment";
preOption.Description = "Test Description";
preOption.EuiAddress = new byte[] { 0x00, 0x0A, 0xE6, 0xFF, 0xFE, 0x3E, 0xFD, 0xE1 };
preOption.Filter = new byte[] { 5, 6, 7, 8 };
preOption.FrameCheckSequence = 255;
preOption.IPv4Address = new IPAddress_v4(new byte[] { 127, 0, 0, 1, 255, 255, 255, 0 });
preOption.IPv6Address = new IPAddress_v6(new byte[] { 0x20, 0x01, 0x0d, 0x0db, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x14, 0x28, 0x57, 0xab, 0x40 });
preOption.MacAddress = new PhysicalAddress(new byte[] { 0x00, 0x0A, 0xE6, 0x3E, 0xFD, 0xE1 });
preOption.Name = "Test Name";
preOption.OperatingSystem = "Test OperatingSystem";
preOption.Speed = 12345678;
preOption.TimeOffsetSeconds = 1234;
preOption.TimestampResolution = 6;
preOption.TimeZone = 1;
byte[] preOptionByte = preOption.ConvertToByte(reorder, null);
using (MemoryStream stream = new MemoryStream(preOptionByte))
{
using (BinaryReader binaryReader = new BinaryReader(stream))
{
postOption = InterfaceDescriptionOption.Parse(binaryReader, reorder, null);
}
}
Assert.IsNotNull(postOption);
Assert.AreEqual(preOption.Comment, postOption.Comment);
Assert.AreEqual(preOption.Description, postOption.Description);
Assert.AreEqual(preOption.EuiAddress, postOption.EuiAddress);
Assert.AreEqual(preOption.Filter, postOption.Filter);
Assert.AreEqual(preOption.FrameCheckSequence, postOption.FrameCheckSequence);
Assert.AreEqual(preOption.IPv4Address, postOption.IPv4Address);
Assert.AreEqual(preOption.IPv6Address, postOption.IPv6Address);
Assert.AreEqual(preOption.MacAddress, postOption.MacAddress);
Assert.AreEqual(preOption.Name, postOption.Name);
Assert.AreEqual(preOption.OperatingSystem, postOption.OperatingSystem);
Assert.AreEqual(preOption.Speed, postOption.Speed);
Assert.AreEqual(preOption.TimeOffsetSeconds, postOption.TimeOffsetSeconds);
Assert.AreEqual(preOption.TimestampResolution, postOption.TimestampResolution);
Assert.AreEqual(preOption.TimeZone, postOption.TimeZone);
}
public static void InterfaceDescriptionOption_ConvertToByte_Test(bool reorder)
{
InterfaceDescriptionOption preOption = new InterfaceDescriptionOption();
InterfaceDescriptionOption postOption;
preOption.Comment = "Test Comment";
preOption.Description = "Test Description";
preOption.EuiAddress = new byte[] { 0x00, 0x0A, 0xE6, 0xFF, 0xFE, 0x3E, 0xFD, 0xE1 };
preOption.Filter = new byte[] { 5, 6, 7, 8 };
preOption.FrameCheckSequence = 255;
preOption.IPv4Address = new IPAddress_v4(new byte[] { 127, 0, 0, 1, 255, 255, 255, 0 });
preOption.IPv6Address = new IPAddress_v6(new byte[] { 0x20, 0x01, 0x0d, 0x0db, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x14, 0x28, 0x57, 0xab, 0x40 });
preOption.MacAddress = new PhysicalAddress(new byte[] { 0x00, 0x0A, 0xE6, 0x3E, 0xFD, 0xE1 });
preOption.Name = "Test Name";
preOption.OperatingSystem = "Test OperatingSystem";
preOption.Speed = 12345678;
preOption.TimeOffsetSeconds = 1234;
preOption.TimestampResolution = 6;
preOption.TimeZone = 1;
byte[] preOptionByte = preOption.ConvertToByte(reorder, null);
using (MemoryStream stream = new MemoryStream(preOptionByte))
{
using (BinaryReader binaryReader = new BinaryReader(stream))
{
postOption = InterfaceDescriptionOption.Parse(binaryReader, reorder, null);
}
}
Assert.IsNotNull(postOption);
Assert.AreEqual(preOption.Comment, postOption.Comment);
Assert.AreEqual(preOption.Description, postOption.Description);
Assert.AreEqual(preOption.EuiAddress, postOption.EuiAddress);
Assert.AreEqual(preOption.Filter, postOption.Filter);
Assert.AreEqual(preOption.FrameCheckSequence, postOption.FrameCheckSequence);
Assert.AreEqual(preOption.IPv4Address, postOption.IPv4Address);
Assert.AreEqual(preOption.IPv6Address, postOption.IPv6Address);
Assert.AreEqual(preOption.MacAddress, postOption.MacAddress);
Assert.AreEqual(preOption.Name, postOption.Name);
Assert.AreEqual(preOption.OperatingSystem, postOption.OperatingSystem);
Assert.AreEqual(preOption.Speed, postOption.Speed);
Assert.AreEqual(preOption.TimeOffsetSeconds, postOption.TimeOffsetSeconds);
Assert.AreEqual(preOption.TimestampResolution, postOption.TimestampResolution);
Assert.AreEqual(preOption.TimeZone, postOption.TimeZone);
}
public static InterfaceDescriptionBlock GetEmptyInterfaceDescription(bool reverseBytesOrder)
{
InterfaceDescriptionOption Options = new InterfaceDescriptionOption();
return new InterfaceDescriptionBlock(LinkTypes.Ethernet, 65535, Options);
}
/// <summary>
/// The Interface Description Block is mandatory. This block is needed to specify the characteristics of the network interface
/// on which the capture has been made. In order to properly associate the captured data to the corresponding interface, the Interface
/// Description Block must be defined before any other block that uses it; therefore, this block is usually placed immediately after
/// the Section Header Block.
/// </summary>
public InterfaceDescriptionBlock(LinkTypes LinkType, int SnapLength, InterfaceDescriptionOption Options, long PositionInStream = 0)
{
Contract.Requires<ArgumentNullException>(Options != null, "Options cannot be null");
this.LinkType = LinkType;
this.SnapLength = SnapLength;
this.options = Options;
this.PositionInStream = PositionInStream;
}
public static InterfaceDescriptionOption Parse(BinaryReader binaryReader, bool reverseByteOrder, Action<Exception> ActionOnException)
{
Contract.Requires<ArgumentNullException>(binaryReader != null, "binaryReader cannot be null");
InterfaceDescriptionOption option = new InterfaceDescriptionOption();
List<KeyValuePair<ushort, byte[]>> optionsList = EkstractOptions(binaryReader, reverseByteOrder, ActionOnException);
if (optionsList.Any())
{
foreach (var item in optionsList)
{
try
{
switch (item.Key)
{
case (ushort)InterfaceDescriptionOptionCode.CommentCode:
option.Comment = UTF8Encoding.UTF8.GetString(item.Value);
break;
case (ushort)InterfaceDescriptionOptionCode.NameCode:
option.Name = UTF8Encoding.UTF8.GetString(item.Value);
break;
case (ushort)InterfaceDescriptionOptionCode.DescriptionCode:
option.Description = UTF8Encoding.UTF8.GetString(item.Value);
break;
case (ushort)InterfaceDescriptionOptionCode.IPv4AddressCode:
if (item.Value.Length == 8)
{
option.IPv4Address = new IPAddress_v4(item.Value);
}
else
throw new ArgumentException(string.Format("[InterfaceDescriptio.Parse] IPv4AddressCode contains invalid length. Received: {0} bytes, expected: {1}", item.Value.Length, 8));
break;
case (ushort)InterfaceDescriptionOptionCode.IPv6AddressCode:
if (item.Value.Length == 17)
{
option.IPv6Address = new IPAddress_v6(item.Value);
}
else
throw new ArgumentException(string.Format("[InterfaceDescriptio.Parse] IPv6AddressCode contains invalid length. Received: {0} bytes, expected: {1}", item.Value.Length, 17));
break;
case (ushort)InterfaceDescriptionOptionCode.MacAddressCode:
if (item.Value.Length == 6)
option.MacAddress = new PhysicalAddress(item.Value);
else
throw new ArgumentException(string.Format("[InterfaceDescriptio.Parse] MacAddressCode contains invalid length. Received: {0} bytes, expected: {1}", item.Value.Length, 6));
break;
case (ushort)InterfaceDescriptionOptionCode.EuiAddressCode:
if (item.Value.Length == 8)
option.EuiAddress = item.Value;
else
throw new ArgumentException(string.Format("[InterfaceDescriptio.Parse] EuiAddressCode contains invalid length. Received: {0} bytes, expected: {1}", item.Value.Length, 8));
break;
case (ushort)InterfaceDescriptionOptionCode.SpeedCode:
if (item.Value.Length == 8)
option.Speed = (BitConverter.ToInt64(item.Value, 0)).ReverseByteOrder(reverseByteOrder);
else
throw new ArgumentException(string.Format("[InterfaceDescriptio.Parse] SpeedCode contains invalid length. Received: {0} bytes, expected: {1}", item.Value.Length, 8));
break;
case (ushort)InterfaceDescriptionOptionCode.TimestampResolutionCode:
if (item.Value.Length == 1)
option.TimestampResolution = item.Value[0];
else
throw new ArgumentException(string.Format("[InterfaceDescriptio.Parse] TimestampResolutionCode contains invalid length. Received: {0} bytes, expected: {1}", item.Value.Length, 1));
break;
case (ushort)InterfaceDescriptionOptionCode.TimeZoneCode:
if (item.Value.Length == 4)
option.TimeZone = (BitConverter.ToInt32(item.Value, 0)).ReverseByteOrder(reverseByteOrder); // GMT offset
else
throw new ArgumentException(string.Format("[InterfaceDescriptio.Parse] TimeZoneCode contains invalid length. Received: {0} bytes, expected: {1}", item.Value.Length, 4));
break;
case (ushort)InterfaceDescriptionOptionCode.FilterCode:
option.Filter = item.Value;
break;
case (ushort)InterfaceDescriptionOptionCode.OperatingSystemCode:
option.OperatingSystem = UTF8Encoding.UTF8.GetString(item.Value);
break;
case (ushort)InterfaceDescriptionOptionCode.FrameCheckSequenceCode:
if (item.Value.Length == 1)
option.FrameCheckSequence = item.Value[0];
else
throw new ArgumentException(string.Format("[InterfaceDescriptio.Parse] FrameCheckSequenceCode contains invalid length. Received: {0} bytes, expected: {1}", item.Value.Length, 1));
break;
case (ushort)InterfaceDescriptionOptionCode.TimeOffsetSecondsCode:
if (item.Value.Length == 8)
option.TimeOffsetSeconds = (BitConverter.ToInt64(item.Value, 0)).ReverseByteOrder(reverseByteOrder);
else
throw new ArgumentException(string.Format("[InterfaceDescriptio.Parse] TimeOffsetSecondsCode contains invalid length. Received: {0} bytes, expected: {1}", item.Value.Length, 8));
break;
case (ushort)InterfaceDescriptionOptionCode.EndOfOptionsCode:
default:
break;
}
}
catch (Exception exc)
{
if (ActionOnException != null)
ActionOnException(exc);
}
}
}
return option;
}
public static InterfaceDescriptionOption Parse(BinaryReader binaryReader, bool reverseByteOrder, Action <Exception> ActionOnException)
{
//Contract.Requires<ArgumentNullException>(binaryReader != null, "binaryReader cannot be null");
InterfaceDescriptionOption option = new InterfaceDescriptionOption();
List <KeyValuePair <ushort, byte[]> > optionsList = EkstractOptions(binaryReader, reverseByteOrder, ActionOnException);
if (optionsList.Any())
{
foreach (var item in optionsList)
{
try
{
switch (item.Key)
{
case (ushort)InterfaceDescriptionOptionCode.CommentCode:
option.Comment = UTF8Encoding.UTF8.GetString(item.Value);
break;
case (ushort)InterfaceDescriptionOptionCode.NameCode:
option.Name = UTF8Encoding.UTF8.GetString(item.Value);
break;
case (ushort)InterfaceDescriptionOptionCode.DescriptionCode:
option.Description = UTF8Encoding.UTF8.GetString(item.Value);
break;
case (ushort)InterfaceDescriptionOptionCode.IPv4AddressCode:
if (item.Value.Length == 8)
{
option.IPv4Address = new IPAddress_v4(item.Value);
}
else
{
throw new ArgumentException(string.Format("[InterfaceDescriptio.Parse] IPv4AddressCode contains invalid length. Received: {0} bytes, expected: {1}", item.Value.Length, 8));
}
break;
case (ushort)InterfaceDescriptionOptionCode.IPv6AddressCode:
if (item.Value.Length == 17)
{
option.IPv6Address = new IPAddress_v6(item.Value);
}
else
{
throw new ArgumentException(string.Format("[InterfaceDescriptio.Parse] IPv6AddressCode contains invalid length. Received: {0} bytes, expected: {1}", item.Value.Length, 17));
}
break;
case (ushort)InterfaceDescriptionOptionCode.MacAddressCode:
if (item.Value.Length == 6)
{
option.MacAddress = new PhysicalAddress(item.Value);
}
else
{
throw new ArgumentException(string.Format("[InterfaceDescriptio.Parse] MacAddressCode contains invalid length. Received: {0} bytes, expected: {1}", item.Value.Length, 6));
}
break;
case (ushort)InterfaceDescriptionOptionCode.EuiAddressCode:
if (item.Value.Length == 8)
{
option.EuiAddress = item.Value;
}
else
{
throw new ArgumentException(string.Format("[InterfaceDescriptio.Parse] EuiAddressCode contains invalid length. Received: {0} bytes, expected: {1}", item.Value.Length, 8));
}
break;
case (ushort)InterfaceDescriptionOptionCode.SpeedCode:
if (item.Value.Length == 8)
{
option.Speed = (BitConverter.ToInt64(item.Value, 0)).ReverseByteOrder(reverseByteOrder);
}
else
{
throw new ArgumentException(string.Format("[InterfaceDescriptio.Parse] SpeedCode contains invalid length. Received: {0} bytes, expected: {1}", item.Value.Length, 8));
}
break;
case (ushort)InterfaceDescriptionOptionCode.TimestampResolutionCode:
if (item.Value.Length == 1)
{
option.TimestampResolution = item.Value[0];
}
else
{
throw new ArgumentException(string.Format("[InterfaceDescriptio.Parse] TimestampResolutionCode contains invalid length. Received: {0} bytes, expected: {1}", item.Value.Length, 1));
}
break;
case (ushort)InterfaceDescriptionOptionCode.TimeZoneCode:
if (item.Value.Length == 4)
{
option.TimeZone = (BitConverter.ToInt32(item.Value, 0)).ReverseByteOrder(reverseByteOrder); // GMT offset
}
else
{
throw new ArgumentException(string.Format("[InterfaceDescriptio.Parse] TimeZoneCode contains invalid length. Received: {0} bytes, expected: {1}", item.Value.Length, 4));
}
break;
case (ushort)InterfaceDescriptionOptionCode.FilterCode:
option.Filter = item.Value;
break;
case (ushort)InterfaceDescriptionOptionCode.OperatingSystemCode:
option.OperatingSystem = UTF8Encoding.UTF8.GetString(item.Value);
break;
case (ushort)InterfaceDescriptionOptionCode.FrameCheckSequenceCode:
if (item.Value.Length == 1)
{
option.FrameCheckSequence = item.Value[0];
}
else
{
throw new ArgumentException(string.Format("[InterfaceDescriptio.Parse] FrameCheckSequenceCode contains invalid length. Received: {0} bytes, expected: {1}", item.Value.Length, 1));
}
break;
case (ushort)InterfaceDescriptionOptionCode.TimeOffsetSecondsCode:
if (item.Value.Length == 8)
{
option.TimeOffsetSeconds = (BitConverter.ToInt64(item.Value, 0)).ReverseByteOrder(reverseByteOrder);
}
else
{
throw new ArgumentException(string.Format("[InterfaceDescriptio.Parse] TimeOffsetSecondsCode contains invalid length. Received: {0} bytes, expected: {1}", item.Value.Length, 8));
}
break;
case (ushort)InterfaceDescriptionOptionCode.EndOfOptionsCode:
default:
break;
}
}
catch (Exception exc)
{
if (ActionOnException != null)
{
ActionOnException(exc);
}
}
}
}
return(option);
}
